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RE: [PSUBS-MAILIST] dual hull
PHIL!
Welcome back -
For a while we were actually talking about submarines!
Warren got a bug to build a group sub project again and even began to
organize the group. Then we got distracted, pissed some kid with a
great "secret" idea off - argued a bit with each other and turned the
page into a
Match making hotline.
So, I guess it's about the same as when you last checked in.
If anyone is still talking about subs, I'd favor emulating (copying)
something like the delta sub that Ian just sent the link too.
Thanks Ian
Sincerely,
Greg Snyder
-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Phil Nuytten
Sent: Thursday, January 30, 2003 7:52 PM
To: INTERNET:personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] dual hull
Re: pressure reduction by hull 'layering'
Jes' amblin' on by and noticed the dual hull thread - Peculiar
how
this comes up again and again! So . . once again, class . . .add all
the
layers together to form one unit thickness hull with an inside diameter
the
same as the inside diameter of your previous 'smallest sphere' - then
add
oil or water or whatever medium you were going to put between the hull
layers,( if air, then you wil have to add a comp system or make the
hull
the previous outside diameter or add air in the form of microspheres in
a
cohesive matrix, and so on . .) until the outside diameter/displacement
equals that of your previous 'largest hull' - that's the best you can
do
with a multi hull if you are able to achieve a perfect load transfer
between the hulls. So why bother? Under the most ideal conditions, there
is
zero advantage - under less than ideal conditions, the layered hull will
not be as rigid ( read 'strong') as a simple mono hull with a thickness
equal to the combined thicknesses of the hull layers. No free lunch .
.which I, for one, say is Suction City - but that's the way she be. By
the
way, Happy New Year, y'all - and specially to the good Cap'n of Vulcania
-
very cool 'Nemosuit', Pat!
Phil Nuytten